39 2 ENTOMOLOGICAL NEWS [Nov., '12 



PSILIDAE. 

 SYRINGOGASTER n. gen. 



Head nearly spherical, broader than high ; male dichoptic ; 

 occiput convex. Front moderately brofid in both sexes ; inner 

 vertical and greater ocellar bristles alone present. Face flat- 

 tened or slightly convex, receding- below ; foveae weak ; bristles 

 wanting; cheeks narrow; clypeus, palpi and proboscis well de- 

 veloped. Third antennal joint much longer than second ; arista 

 sparingly short plumose. Prothorax elongate, collar-like ; me- 

 sothorax elongate, attenuated anteriorly ; fore and middle 

 coxae widely separated, at least equalling length of middle 

 femur apart ; hypopleurae greatly developed posteriorly, cone- 

 like, bearing the hind legs at their extremities ; mesonotum 

 quadrate ; scutellum very short and broad ; metanotum 

 well developed. Only a post-alar and a prescutellar pair of 

 bristles present ; pleurae bare excepting sparse, fine pile. Ab- 

 domen very elongate, clavate, very narrow basally ; first and 

 second segments fused together in a length as long as head 

 and thorax together, the incision scarcely discernible; (fig. 

 5) ; lateral margins turned down but not strongly revolute. 

 Hypopygium of male distinct but little developed externally. 

 Legs slender except hind femora which are very much swollen 

 medianly, bearing two series of flexor spines, otherwise lep;s 

 unarmed ; tibiae without preapical bristles ; hind tibiae arcuated 

 conforming to the curvature of the swollen femora, and near- 

 ly as long ; claws small, curved ; pulvilli present. Wings not at- 

 taining apex of abdomen, attenuating basally, axillary lobe 

 wanting; costal cell very narrow; axillary vein incomplete, 

 more or less fused with first, (see figure). 



Type species Syringogaster rufa n. sp. 



This genus evidently belongs to the Psilidae and may be 

 diagnosed as follows : 



Elongate, slender; head nearly spherical; front hare except bristles 

 of vertex ; face convex, without vihrissae ; antennae moderately elon- 

 gate, decumbent ; thorax slender, long, bare, except a few bristles near 

 posterior mesonotal margin ; middle and posterior legs removed far 

 caudad with posterior pair situated at apex of conical hypopleurae; 

 scutellum short and broad ; abdomen very slender, clavate, first and 



